【摘要】 架空地线的覆冰增长危及电力系统稳定性,目前尚无有效预测方法。通过人工气候室模拟特定环境下2种型号地线的覆冰,运用回归分析法以及计算机软件编程对覆冰数据进行分析整理。得出在特定条件(气温-5～-1℃、雨量0～30mm、风速1m/s)下,随温度的降低,冰厚随雨量变化率越来越大,且呈"S"形增长。给出了地线覆冰的预测公式及曲线图,对于地线融冰、线路架设具有一定的参考作用。更多还原

【Abstract】 The overhead ground wire icing growth has been endangered the stability of the power system,and at present there is no effective prediction method.Through simulating two models of ground wire icing under the specific circumstances in the artificial climate chamber,and using regression analysis and computer software programming the icing data is analyzed and collated.Under specific conditions (at temperature-5 to-1 ℃,rainfall 0 to 30 mm,wind speed 1 m/s),the icing thickness is varied greater and greater with the increasing rainfall and temperature reduction,which is formed as S-shaped growth.The paper gives out the ground wire icing prediction formula and curve,which will be a reference for ground wire ice melting and line erection.更多还原